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Feedforward Interference Cancellation in Radio Receiver Front-Ends

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2 Author(s)
Ayazian, S. ; Texas Univ., Austin ; Gharpurey, R.

An interference cancellation technique is described for improving the dynamic range of receivers. A feedforward approach is used to attenuate large interferers before the down-conversion mixer in a receiver. This is accomplished with no measurable impact on the in-band noise performance. Techniques to cancel interference within a narrowband and also in multiple bands are described. Simulation results and measurements from a discrete prototype system are used to validate the approach.

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Circuits and Systems II: Express Briefs, IEEE Transactions on  (Volume:54 ,  Issue: 10 )